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Propulsion Controls Modeling for a Small Turbofan EngineA nonlinear dynamic model and propulsion controller are developed for a small-scale turbofan engine. The small-scale turbofan engine is based on the Price Induction company's DGEN 380, one of the few turbofan engines targeted for the personal light jet category. Comparisons of the nonlinear dynamic turbofan engine model to actual DGEN 380 engine test data and a Price Induction simulation are provided. During engine transients, the nonlinear model typically agrees within 10 percent error, even though the nonlinear model was developed from limited available engine data. A gain scheduled proportional integral low speed shaft controller with limiter safety logic is created to replicate the baseline DGEN 380 controller. The new controller provides desired gain and phase margins and is verified to meet Federal Aviation Administration transient propulsion system requirements. In understanding benefits, there is a need to move beyond simulation for the demonstration of advanced control architectures and technologies by using real-time systems and hardware. The small-scale DGEN 380 provides a cost effective means to accomplish advanced controls testing on a relevant turbofan engine platform.
Document ID
Document Type
Conference Paper
Connolly, Joseph W.
(NASA Glenn Research Center Cleveland, OH United States)
Csank, Jeffrey T.
(NASA Glenn Research Center Cleveland, OH United States)
Chicatelli, Amy
(Vantage Partners, LLC Cleveland, OH, United States)
Franco, Kevin
(California Univ. Riverside, CA, United States)
Date Acquired
September 11, 2017
Publication Date
July 10, 2017
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
Meeting Information
Meeting: AIAA Propulsion and Energy Forum
Location: Atlanta, GA
Country: United States
Start Date: July 10, 2017
End Date: July 12, 2017
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
WBS: WBS 109492.
Distribution Limits
Public Use Permitted.
jet propulsion
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